Fire and water proof flexible tubing.



PATENTED JUNE 7, 1904.

G. MLGOSTELLO. FIRE AND WATER PROOF FLEXIBLE TUBING.

APPLICATION II'LED APR. 28. 190s.

no MODEL.

THE Nunms PETERS co. PHOTO-LITHO., wAsmnomn, a. o

UNITED STATES Patented June '7, 1904:.

PATENT OF I E.

FIRE AND WATER PROOF FLEXIBLE TUBING.

SPECIFICATION forming part of Letters Patent No. 761,879, dated June '7, 1904.

Application filed April 28, 1903.

To all w/wm it may concern:

Be it known that I, GEORGE M. OosrELLo, a citizen of the United States, residing at the city of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new and useful Improvements in Fire and Water Proof Flexible Tubing, of which the following is a specification.

In pneumatic tools, such as riveters orthe like, the motive fluid is usually conveyed to the tool through a long flexible tubing, and heretofore the tubing in general use was the ordinary rubber hose. In use the rubber hose frequently came -in contact with the hot metal, such as rivets, andwas speedily burned through, and thereby rendered useless. Again, in dragging the hose and tool from place to place the abrasion of the hose thus occasioned.

speedily wore out the hose and rendered it useless.

The principal object of my invention is to provide a flexible tubing having on its exterior a porous matted covering of fireproof material, such as asbestos, and an armor of wire wound upon the porous fireproof coverving to not only protect the covering from abrasion, but to also confine the covering to the exterior of the flexible tubing without impairing the flexibility of the composite tube.

The nature and scope of my invention will be more fully understood from the following description, takenin connection with the accompanying drawings, forming part hereof, in which- Figure 1 is a side elevational view, partly broken away, of a tubing embodying main features of. my present invention. Fig. 2 is a cross-sectional view, enlarged, of said tubing; and Fig. 3 is a view similar to Fig. 2, but illustrating a modified form of the invention.

Referring to the drawings, a represents an interior tube of rubber or other somewhat "sei-iiii No. 154,724. (No model.)

similar flexible material. In the form illustrated in Figs. 1 and 2 this tube a is incased in a woven fabric 5, of canvas, linen, or other suitable material. On the exterior of the fabric 7) and tube a is arranged a covering (l,

of loosely-matted asbestos or similar fibrous material, and around the covering d, of ashestos, are wound the wires a, preferably in opposite spirals. In Fig. 3 the covering (Z, of asbestos, is placed around an inner air and fluid proof tube a, of rubber and other flexible material, and is confined thereon by the Wires 0, as in Figs. 1 and 2, but without the canvas or similar coveringfor the tube a, as the latter is made air and fluid proof. The armor, consisting of the wires 0, is so constructed as not to seriously impair the flexibility of the tube and has at least two functions namely, the armor 6 serves to confine the loosely-matted covering d to the inner flexible tube, and it also serves to protect said covering from abrasion as the tubing is dragged from place to place. By winding the wires 0 in opposite spirals the covering (Z is efficiently confined to the flexible inner tubc'and yet the composite tube may be turned or bent without breaking or otherwise impairing the covering (Z, the wires 0 sliding readily upon said covering cl.

The composite tube produced as hereinbefore described is flexible, fluid-proof in its interior, and fireproof on its exterior. The covering d being of loosely-matted fireproof material is sufliciently porous to eificiently insulate the rubber inner tube from the heat of hot rivets, &c., when the tubing is in use.

Having thus described the nature and object of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A fire and water proof hose, comprising a flexible tube having on the exterior a porous matted covering of fireproof material and an armor of wire wound upon the porous fireproof covering to not only protect said covering from abrasion but to also confine the covering to the exterior of said flexible tube without impairing the flexibility of the hose, substantially as and for the purposes set forth. 2: A fire and Water proof hose, comprising a flexible tube of composite material having a surrounding covering of loosely-matted asbes tos and an armor of Wire Wound upon the Intestimony\vhercoflhm'ehcreuntosetmy loosely-matted asbestos covering" to not only signature in the presence of two subscribing protect sald covering from abrasion, but to witnesses.

also confine the covering to the exterior of GEORGE M. COS'JTIGLLO. 5 saidflexible composite tube without impair- \Vitnesses:

ingthe flexibility of the hose, substantially as J. \VALTER DoUeLAss,

and for the purposes described. THOMAS M. SMITH. 

